Added Ruby Language File (#456)

* Added Ruby Language File

* Added resources and code

Author: jrg94

languages/_posts/2021-08-12-ruby.md

@@ -0,0 +1,34 @@
+---
+title: The Ruby Programming Language
+layout: default
+last-modified: 2021-08-12
+featured-image: 
+tags: [ruby]
+authors:
+  - the_renegade_coder
+---
+
+According to Wikipedia, Ruby is a general-purpose language that first appeared back in 1995 in Japan. 
+Apparently, Ruby is a truly object-oriented language in the sense that almost everything is an object. 
+In fact, even numbers are objects in Ruby which means they can be subjected to the dot operator. How cool is that?
+
+Today, the other major industry languages like Python and Java are more popular general-purpose languages, 
+so Ruby often finds its place as a web development language. This is probably due to the Ruby on Rails 
+framework which helps developers build web applications quickly and easily.
+  
+## Features
+  
+- Everything is an object
+- Closures
+- Mixins
+  
+## Articles
+
+{% include article_list.md collection=site.tags.[name of language] %}
+
+## Further Reading
+
+- [Ruby GitHub](https://github.com/ruby/ruby)
+- [Ruby Official Website](https://www.ruby-lang.org/)
+- [Ruby REPL](https://repl.it/languages/ruby)
+- [Ruby Wikipedia Page](https://en.wikipedia.org/wiki/Ruby_(programming_language))